Smackdown! comes to you from San Diego, California this week, and what's more is that we have a new WWE Champion joining us!

Rob Van Dam has climbed one heck of a mountain. He has hung around the title picture every now and then, but last Sunday at WrestleMania 21, the 2005 Royal Rumble winner achieved his dream of becoming WWE Champion, dethroning John Bradshaw Layfield and his historic and lengthy title reign. Van Dam most certainly has a lot on his mind and there is no telling what the former WWE Champion has got to say either. Both are scheduled to be on the show. Whether or not they collide is unknown.

The Undertaker extended his lengthy winning streak at WrestleMania with a victory over upstart Shelton Benjamin, who was looking to make an impact and leave The Undertaker in his path. Unfortunately for the Intercontinental Champion, he could not blemish The Deadman's undefeated record, and Undertaker is now 13-0 on the grandest stage of them all. The Undertaker will be in action this week, but one has to wonder whether or not Shelton Benjamin's actions from Monday are on the mind of The Phenom.

Carlito Caribbean Cool outlasted several Smackdown! wrestlers and defeated the great Eddie Guerrero on Sunday night to capture the previously vacated United States Championship. This is Carlito's second reign as United States Champion, the first coming back in October when he debuted on Smackdown! and won the title from John Cena. Both Carlito and Eddie will be in action this week, with the U.S. Champion taking on Charlie Haas, whom he beat to get to the Tournament Final, and Guerrero going one-on-one with the mighty Luther Reigns. Will these two cross paths? Or will they forge new paths of their own? Tune in to find out!

Finally, the WWE Cruiserweight Championship has a new owner as well!! Paul London survived the Six-Pack Challenge Match at WrestleMania and won the Cruiserweight Championship for the first time in his career. His prize for winning that belt? A Cruiserweight Championship defense in his first match as champion. His opponent? None other than his rival Billy Kidman. The former Cruiserweight Champion is reportedly unhappy with this decision, according to a source with knowledge of the situation, so we might see a bit of unrest from Chavo Guerrero.

All of this and so, so much more this week on Smackdown! Check your local listings.